* 12 pages and appendix (10 pages). Submitted to the 34th Conference on
Neural Information Processing Systems (NeurIPS 2020), Vancouver, Canada Access Paper or Ask Questions
* JMLR W&CP 49: COLT 2016 Proceedings (2016) 1-31 * 30 pages. Corrected typos. Appears in JMLR Workshop and Conference
Proceedings 49: Proceedings of the 29th Annual Conference on Learning Theory
(COLT 2016) Access Paper or Ask Questions